idea of India only started 150 - 200 years ago and it all started with Indus valley civilization, and even if you go by Aryan invasion of India do not forget Aryans created The Hindu religion ..., and yes we will accept Aryans too if there where any. And that is history of this region not of India's. India today is a true cosmopolitan country in the world.
lol.. One huge cosmopolitan nation of all brown people...